Star-delta contactor combination, application: contactor combinations for starting motors in star-delta, switching frequency: max. 30 starts/hour, accessories: star-delta combinations SDAINL, utilization category: AC-3: squirrel cage motors: starting, switching off during operation, rated operating current AC-3 380 V 400 V: Ie= 70 A, max. rated operating power three-phase motors 50 - 60 Hz AC-3 220 V 230 V: P= 18.5 kW, 380 V 400 V: P= 37 kW, 500 V: P= 45 kW, 660 V 690 V: P= 37 kW, max. switching time: 20 s, actuating voltage: 400 V 50 Hz, type of current AC/DC: alternating current actuation, individual components of the combination Mains contactor Q11: DILM40, + DILM150-XHI31, Delta contactor Q15: DILM40, + DILM150-XHI11 type, Star contactor Q13: DILM40, + DILM150-XHI11 type, Time relay K1: ETR4-51 type, Note: Also suitable for motors of efficiency class IE3